# US 8,785,757 B2 · Musical instruction and assessment systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,785,757 B2 - Document ID: US8785757B2 - Status: Granted - Kind: B2 - Application number: 13/725,824 - Filed: 2012-12-21 - Published: 2013-09-12 - Granted: 2014-07-22 - Earliest claimed: 2010-04-23 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Stefan Pillhofer; Jan-Hinnerk Helms; Gerhard Lengeling; Alexander Soren; Alexander Harry Little; John Danty; Timothy B. Martin; Matt Evans; Ole Lagemann - Web page: https://patentgrep.com/patent/US8785757B2 ## CPC - G09B 15/00: Teaching music (metronomes G04F5/02) - G09B 15/002: {Electrically operated systems} - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) ## Abstract The invention relates to systems, methods, and apparatus for assessing a musical performance. The musical performance can include a user's performance of a musical instrument. MIDI or audio notes are input and compared to the notes of a music track. An indication is provided to assess the musical performance. The assessment can be on the basis of timing and/or pitch errors. ## Claims ### Claim 1 A method for providing instruction and assessing a musical performance, the method comprising: displaying a musical composition on a first region of a display device; displaying on a separate second region of said display device a performance of said musical composition on a musical instrument for teaching a user how to perform said musical composition on said musical instrument; receiving an indication from a user of a start of a musical performance by said user of said musical composition; displaying a timing guide on said displayed musical composition in response to said indication; receiving an input corresponding to a real-time performance of said displayed musical composition by said user with respect to said displayed timing guide; comparing the input to notes of said displayed musical composition; and displaying a real-time assessment of the real-time musical performance as a result of said comparing, wherein displaying the real-time assessment includes displaying a performance rating that includes a graphical depiction. ### Claim 2 (depends on 1) The method of claim 1, where the graphical depiction includes a circle graphic with colored concentric bands that indicate a percentage of correct notes played. ### Claim 3 (depends on 1) The method of claim 1, where the graphical depiction includes an overall performance rating that indicates notes played correctly as a percentage of a total number of notes in a part of the musical composition. ### Claim 4 (depends on 3) The method of claim 3, where the appearance of the overall performance rating changes depending on a direction of change of the percentage value. ### Claim 5 (depends on 1) The method of claim 1, where the graphical depiction includes score segments representing sections of the musical composition separated by one or more dividers, where each score segment has a length proportional to a duration of the section. ### Claim 6 (depends on 1) The method of claim 1, further comprising a movie region including one or more views. ### Claim 7 (depends on 1) The method claim 1, further comprising a notation region displaying score notes and a note error area that includes a shaded region behind or in front of score notes that were not played correctly. ### Claim 8 (depends on 1) The method of claim 1, further comprising: pausing the displaying of the real-time assessment when a solo in the musical composition is reached. ### Claim 9 A non-transitory computer-readable storage medium for storing instructions, which, when executed by one or more processors, causes the one or more processors to perform operations comprising: displaying a musical composition on a first region of a display device; displaying on a separate second region of said display device a performance of said musical composition on a musical instrument for teaching a user how to perform said musical composition on said musical instrument; receiving an indication from a user of a start of a musical performance by said user of said musical composition; displaying a timing guide on said displayed musical composition in response to said indication; receiving an input corresponding to a real-time performance of said displayed musical composition by said user with respect to said displayed timing guide; comparing the input to notes of said displayed musical composition; and displaying a real-time assessment of the real-time musical performance as a result of said comparing, wherein displaying the real-time assessment includes displaying a performance rating that includes a graphical depiction. ### Claim 10 (depends on 9) The computer-readable storage medium of claim 9, where the graphical depiction includes a circle graphic with colored concentric bands that indicate a percentage of correct notes played. ### Claim 11 (depends on 9) The computer-readable storage medium of claim 9, where the graphical depiction includes an overall performance rating that indicates notes played correctly as a percentage of a total number of notes in a part of the musical composition. ### Claim 12 (depends on 11) The computer-readable storage medium of claim 11, where the appearance of the overall performance rating changes depending on a direction of change of the percentage value. ### Claim 13 (depends on 9) The computer-readable storage medium of claim 9, where the graphical depiction includes score segments representing sections of the musical composition separated by one or more dividers, where each score segment has a length proportional to a duration of the section. ### Claim 14 (depends on 9) The computer-readable storage medium of claim 9, further comprising a movie region including one or more views. ### Claim 15 (depends on 9) The computer-readable storage medium of claim 9, further comprising a notation region displaying score notes and a note error area that includes a shaded region behind or in front of score notes that were not played correctly. ### Claim 16 (depends on 9) The computer-readable storage medium of claim 9, further comprising: pausing the displaying of the real-time assessment when a solo in the musical composition is reached. ### Claim 17 A system comprising: one or more processors; memory coupled to the one or more processors and configured to store instructions, which, when executed by the one or more processors, causes the one or more processors to perform operations comprising: displaying a musical composition on a first region of a display device; displaying on a separate second region of said display device a performance of said musical composition on a musical instrument for teaching a user how to perform said musical composition on said musical instrument; receiving an indication from a user of a start of a musical performance by said user of said musical composition; displaying a timing guide on said displayed musical composition in response to said indication; receiving an input corresponding to a real-time performance of said displayed musical composition by said user with respect to said displayed timing guide; comparing the input to notes of said displayed musical composition; and displaying a real-time assessment of the real-time musical performance as a result of said comparing, wherein displaying the real-time assessment includes displaying a performance rating that includes a graphical depiction. ### Claim 18 (depends on 17) The system of claim 17, where the graphical depiction includes a circle graphic with colored concentric bands that indicate a percentage of correct notes played. ### Claim 19 (depends on 17) The system of claim 17, where the graphical depiction includes an overall performance rating that indicates notes played correctly as a percentage of a total number of notes in a part of the musical composition. ### Claim 20 (depends on 19) The system of claim 19, where the appearance of the overall performance rating changes depending on a direction of change of the percentage value. ### Claim 21 (depends on 17) The system of claim 17, where the graphical depiction includes score segments representing sections of the musical composition separated by one or more dividers, where each score segment has a length proportional to a duration of the section. ### Claim 22 (depends on 17) The system of claim 17, further comprising a movie region including one or more views. ### Claim 23 (depends on 17) The system claim 17, further comprising a notation region displaying score notes and a note error area that includes a shaded region behind or in front of score notes that were not played correctly. ### Claim 24 (depends on 17) The system of claim 17, where the instructions cause the one or more processors to perform the operation of: pausing the displaying of the real-time assessment when a solo in the musical composition is reached.